Yarn spinning or twisting apparatus.



No. 660,624. Patented Oct. 30, I900.

G. U. DRAPER. YARN SPINNING 0B TWISTINB APPARATUS.

(Application filed May 1!, 1900.) (No Model.)

jzueredar- 4 6 607C919 OJr er UNITED STATES PATENT OFFICE.

GEORGE O. DRAPER. OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO THE DRAPERCOMPANY, OF SAME PLACE AND PORTLAND, MAINE.

YARN SPINNING OR TWISTING APPARATUS.

SPECIFICATION formingpart of Letters Patent No. 660,624, dated October30, 1900.

Application filed May 11, 1900.

To all wit/0711, it may concern/.-

Be it known that I, GEORGE O. DRAPER, a citizen of the United States,residing at Hopedale, county. of Worcester, State of Massa- 5 chusetts,have invented an Improvement in Yarn Spinning or Twisting Apparatus, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings representinglike parts.

This invention has for its object the production of simple, practical,and novel apparatus particularly adapted for high-speed twisting orspinning frames wherein the spindle speed is from, say, ten to fifteenthousand revolutions per minute.

The present embodiment of my invention is adapted especially to allclasses of vertical twisting where a traveler is used which takes itsgreatest hearing at its lower side.

Figure 1 is a diametral section, enlarged, of part of a spinning ortwisting apparatus embodying one form of my present invention with theparts at rest, the spindle and bob bin being partly shown in dottedlines. Fig. 2 is a similar view showing the position of the rotatablemember of the traveler-support or duplex ring when the apparatus isrunning at speed.

In the present embodimentof my invention I provide a duplex ring ortraveler-support comprising fixed and rotatable members each having atraveler-race, said members being so arranged that the races are insubstantial vertical alinement, the traveler revolving around theinterior of the duplex ring, between it and the bobbin. The members a bof the duplex ring are herein shown superposed one above the other, themember ct having its foot a extended to be engaged and held fixedly bythe sheet-metal holder h, of well-known construction, suitably mountedon the ring-rail R, and the said member is shown as having an upturnedannular flange a at its top, forming a traveler-race. The rotatablemember I) is shown as a rather deep ring having at its upper end alaterally-extended exterior flange b, which loosely enters an annularrecess a formed in the fixed member a by the overhanging shoulder a anda rib c, which is sprung into place after Serial No. 16,287. (No model.)

the two members a and b are assembled. The ring I) is thus free torotate and to move radially and axially to a limited extent, and Iprefer to make the lower member of the pair rotatable, inasmuch as thelift of the traveler, due to the stress of the yarn, will graduallyeffect rapid rotation of said member'as the spindle speed increases. Theinner annular faces of the members a and b are substan' 6o tially inaxial alinement when running at speed, and I prefer tomake the twomembers of the same iuternaldiameter. The traveler t has alaterally-extended head t, with its extremity bent down, as at 15 toloosely embrace the flange or race a of the fixed member, the lower endof the traveler being bent to form an upturned hook i which embraces thelower end of the web of the member I), such portion thereof forming therace for the trav- 7o eler. I thus provide fixed and movable races forthe traveler, the latter cooperating with both simultaneously.

Now when the frame is started up the member or ring I) is resting by itsflange b on the rib o, and the traveler will at first travel along twoquiescent races; but as the speed increases the friction of the traveleron the movable ring will finally effect its rotation, and as the speedof rotation of the ring approaches the speed of the traveler the formerwill rise from the supporting-rib c and will appear to float, beingsustained by the stress of the yarn as it passes to the bobbin B (partlyshown in dotted lines, Fig. 1) on the high-speed spindle S of anysuitable type. The bearing of the traveler on the fixed member imparts aslight drag thereto and steadies the movement of the traveler androtatable ring member as they move in unison.

I have not shown the parts of a spinning or twisting frame in detail, itbeing understood that they are all ofusual construction, the yarn beingled from usual delivery-rolls through a pigtail orguide-eye to thetraveler. 5

My invention is, as will be manifest, of the so-called rotary-ring type,and it provides for the use of a simple and effective traveler supportor ring which can be readily substituted in frames now in use byremoving the old ring and inserting my novel duplex ring in the old-ringholder.

Various changes may be made in details of construction and arrangementwithout .de-

parting from the spirit and scope of my invention. I

Having described my invention, what I claim, and desire to secure byLetters Patent,

1. In a spinning or twisting frame, aduplex traveler-support composedof'a fixed and a movable member arranged one above the other and eachhaving a race fora traveler.

2. In a spinning or twisting frame, aduplex traveler-support comprisinga fixed annular member having a traveler-race, a movable annular memberalso having a traveler-ra e and capable of gyratory movement under thestress of the yarn, said members beingsuperposed one above the other.

3. The combination of a fixed ring having an upturned flange, andprovided with an internal recess, a rotatable ring capable of gyratorymovement and having a laterally-extended flange to looselyenter saidrecess, and a traveler to engage the depending, web of the rotatablering and the upturned flange of the fixed ring.

4. lhe combination of a fixed and a rotatable ring, the latter beingcapable of gyratory movement under the stress of the yarn, means tosupport the rotatable ring vertically by or through the fixed ring, anda traveler in operative engagement with both of said rings.

5. In a spinning or twisting frame, a fixed ring having atraveler-race,and a rotatable, radially and axially movable ring, also havinga'traveler-raee, said races being located one above the other, and atraveler to simultaneously engage the races and revoluble between therings and the bobbin.

6. The combination with a fixed ring having a traveler-race at its top,of a rotatable ringfreely supported by and depending below the fixedring and-having a traveler-race atits lower end, means to limit gyratorymovement of the rotatable ring due to stress of the yarn, and a travelerrevoluble upon the races of the said rings.

7. The combination with a fixed ring having an upturned flange to form arace, said ring also having-an integral, overhanging shoulder, arotatable and radially-movable ring having a depending web and with alaterally-extended flange at its upper end, to extend beneath saidshoulder, an annular retaining-rib on the fixed' ring, beneath theGEORGE .o. DRAPER.

Witnesses:

E. D. BANOROFT, ERNEST W. Woo-D.

